That ticking sound from the engine almost sounds like this!
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There is a huge thread about this issue on the E90Post forum - it deals with the noise in that case being caused by hydraulic lifters, so under motorplan these various affected parts or in some cases the entire head gets replaced!
Yep, same as the 330i - long legs for the open road and plenty of reserve for overtaking! Under normal driving conditions the engine/exhaust note is so subdued and subtle which makes for a comfortable and relaxed drive - but give it some "stronger" inputs and the engine/exhaust opens up very nicely!
7.1 l/100 km is awesome! From the breakfast run today, at one point my average consumption was 7.9 l/100 km, after the 400 km round trip and since I was solo, some spirited driving on the return, my overall average consumption by the time I got home was 8.1 l/100 km which is not bad I reckon!
These cars are light on fuel when driven sensibly, but will use more fuel when the power is asked for - fair enough! :thumbs: